AS13768 Cogeco Peer 1
2607:d500:600::/40 - ASTUTEHOSTING
V6NetHandle: NET6-2607-D500-1 OrgID: AH-54 Parent: NET6-2600-1 NetName: ASTUTEHOSTING NetRange: 2607:D500:: - 2607:D500:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 54527 RegDate: 2012-07-16 Updated: 2012-07-16 Source: ARIN OrgID: AH-54 OrgName: Astute Hosting Inc. CanAllocate: Street: #626 - 470 Granville St City: Vancouver State/Prov: BC Country: CA PostalCode: V6C 1V5 RegDate: 2012-02-24 Updated: 2017-01-28 ReferralServer: rwhois://rwhois.astutehosting.net:4321 OrgTechHandle: TECH627-ARIN OrgNOCHandle: NOC12500-ARIN OrgAdminHandle: ADMIN2996-ARIN OrgAbuseHandle: ABUSE3349-ARIN Source: ARIN
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.